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Museum of Science and Industry, Chicago
During World War I, navies built submarines to hunt down and destroy enemy shipping, and a torpedo allowed them to accomplish this. Every component, from the periscope to the diving system, worked to move torpedoes within range of an adversary in order to destroy it.
G7E PRACTICE TORPEDO
The G7e torpedo became the German Navy's standard torpedo during World War II. Germany had been secretly developing electric torpedoes since the end of World War I, though the Treaty of Versailles had limited Germany's weapons production. Unlike air-powered (steam) torpedoes, electric torpedoes were cheaper and easier to build and did not leave a trail of bubbles.
This G7e practice torpedo is designed to train U-boat crews on how to properly maintain, load, and fire a torpedo in battle. Training torpedoes were recovered and reused after each shot.
WARHEAD
Instead of explosives, this warhead held air bottles (1) that filled the chamber with air when the nose propeller (2) stopped turning. The air made the warhead buoyant and caused the tail to sink and the nose to tip into the air. A small light (3), and red and white stripes helped crews locate and identify fired training torpedoes. After firing, they retrieved the torpedoes with the nose hook and fired them again.
BATTERY COMPARTMENT
Lead-acid batteries that were 8-feet long and weighed 1,567 lbs powered most German torpedoes. Because warm batteries provided more power, the battery pack had a heating element that increased the torpedo's range at 30 knots from 1,400 yards cold, to 5,470 yards warm.
MOTOR
The motor (4) on an electric torpedo rotated a shaft (5), which drove a gearbox, and then the propellers. A motor could run for approximately five and a half minutes until a torpedo was "dead" in the water.
DEPTH-KEEPING DEVICE
The depth-keeping device (6) consisted of a small pendulum that sensed a torpedo's up or down movement and signaled for changes in depth. It was important that a torpedo not break the water's surface, thereby keeping its presence undetectable. The depth at which a torpedo ran depended on its fuse type. An impact fuse torpedo ran just beneath the surface of the water, colliding with ships. A magnetic fuse torpedo ran deep enough to pass under a target and explode underneath the center of a hull.
GYROSCOPE
The Gyro (7) served to keep the torpedo on its intended course. Prior to launching, a spindle entered the tube and engaged the gyro to adjust it for its final course. After firing, the torpedo ran straight for 400 yards and then the gyro turned on. The gyro sensed if it was not heading towards the target and turned the torpedo onto the intended course.
AIR BOTTLES
These air bottles (8) carried enough air to supply the gyro and to control the directional and depth rudders.
GEARBOX
A single rotating shaft drove the gearbox (9), which then converted the one-way rotation into two counter-rotating propeller shafts. This counter-rotation neutralized the torque of a single spinning propeller, which could have caused the torpedo to roll or travel in an arc.
PROPELLERS
A torpedo's two propellers (10) not only provided thrust, but they also counteracted the torque of a single propeller. This is similar to the U-505, which has counter rotating propellers on separate shafts. The U-505's propellers were made of manganese bronze, but most torpedo propellers were made of steel.
IMPULSE PISTON
The impulse piston (11) pushed the torpedo out of the tube. To fire the torpedo, a burst of high-pressure air caused the piston to slide through the torpedo tube and push the torpedo out into the water. The "ears" on the piston ran in corresponding grooves in the tube. The grooves stopped near the end of the tube so the submarine did not lose the piston. The piston then returned via water pressure to the rear of the tube. This torpedo launching system prevented air bubbles from escaping from the tube after firing a torpedo. The bubbles could have given away the position of the boat.
Title : Electronic Component for Fred Mix
Creator (Photographer) : Unknown
Publisher : Graphic Services
Place of Publication : College Station, Texas
Year (Coverage) : 1964
Document Type : Image
Format : Photographic negative
Dimensions : 4 x 5 inches
Digitization Date : June2010
Description : Unknown
Note : Brazos County, Texas
Collection : Texas A&M University Archives
Resource Identifier : Graphic Services Photos, Box 22, File 22-268
Institution : Texas A&M University, College Station, Texas
Repository : Cushing Memorial Library and Archives
Contact Information : Email: cushing-library@tamu.edu Phone: 979-845-1951
Copyright : It is the users responsibility to secure permission from the copyright holders for publication of any materials. Permission must be obtained in writing prior to publication. Please contact the Cushing Memorial Library for further information
I've completely reworked the hadware board. The basics remain the FPGA module Terasic, the DE0-Nano. This board contains a lot of I / O lines and is super fast. Everything is on a single-sided PCB. The output transistor drivers ( 20 pieces 500 mA/ 45V outputs ) are in SMD to save board space. The DE0-nano FPGA board is as a Peggy-back board mounted on ther driver PCB. Via the USB connector, the FPGA program can be re-written.
What does this interface:
* 20 open collector outputs via JP10 and JP11.
- Camera meter
- Camera shutter
- X1 flash1 signaal ( manual or TTL mode flash1)
- Q1 flash1 signaal ( TTL mode flash1 ) or X3 flash3 manual mode.
- X2 flash2 signaal ( manual or TTL mode flash2)
- Q2 flash2 signaal ( TTL mode flash2 ) or X4 flash4 manual mode.
- DIR steppen motor board.
- Step steppen motor board.
- Enable steppen motor board.
- 1 Spare output.
- 4 outputs used to drive the color background module. Via JP12
- 6 outputs used to drive the Cree foreground module. Via JP9
Enc1 connector:
2 inputs from a rotary encode frontplate. Used as general digital input value.
Enc2 connector:
2 inputs from a rotary encode frontplate. Used to move the step motor of the lineaire stage module in manual mode.
Range switch input
4 input switches to change the analog sensitivity range of the color pot meters.
Drive of the H-Bridge color shutter module:
- 6 direct FPGA outputs via JP13 and JP17.
Matrix 5X8 keyboard 40 pushbuttons. via JP14 and JP18.
LCD1 display 4X20 chars via JP16.
LCD2 display 4X20 chars via JP15.
4 I/O connectors via JP2 still no assigned function.
Connection via the general GPIO3 connector from the top of the FPGA DE-Nano board.
2x13 pins connected to JP5 and JP6.
8 analog inputs 12 bit resolution via JP8.
- 4 inputs are used for the color setting.
- 1 input used for the stepper speed
- 3 free analog inputs, no function now.
Logic analyser signals:
- 8 levels out the FPGA module via JP3.
Encoder and micro switches from the lineaire stage as feedback position via JP4.
- EncA.
- EncB.
- Enc home.
- min end switch.
- max end switch.
3 I/O connectors via JP1 still no assigned function.
Power 5V and 3.3V connectors.
Last update 2 feb 2015
Maple cabinetry in a chocolate stain paired with Cambria quarz in Canterbury. Wall color SW 6342 Spicy Hue. Yum!
Composants électroniques (focus stacking).
Image composée de 57 photos prises avec la bonnette Raynox DCR-250 et assemblées avec Zerene Stacker.
Gala 75 Aniversario Coros y Danzas "Villa de Madridejos"
VÍDEO en youtu.be/3ehb5TZVQ4A
El 75 aniversario de la Asociación de Coros y Danzas Villa de Madridejos reunió este fin de semana en el Pabellón Santa Ana a la mayoría de los componentes que han pasado por dicha asociación desde 1940 en una gala homenaje a las personas que tuvieron la iniciativa de crear el grupo y han sabido transmitir el saber popular hasta nuestros días.
La gala consistió en un recorrido por la historia de la asociación desde su creación hasta nuestros días documentada con vídeos y fotografías, e intercalada con distintos bailes regionales, propios de La Mancha, que interpretaron miembros antiguos de las asociación, el grupo actual compuesto por 48 personas y el grupo infantil.
La pieza clave de las actuación y que sirvió como colofón a la gala fue la ‘seguidilla de Madridejos’, considerada desde el alma del grupo como el himno de esta asociación. También se interpretaron fandangos, jotas y rondeñas.
Los antiguos componentes subieron al estrado para contar algunas de sus experiencias a su paso por la asociación o recibir obsequios en reconocimiento a su labor.
Al evento asistieron el Presidente de la Federación Española de Agrupaciones de Folclore, Pedro Asuar y el Presidente de la Federación Castellano-Manchega de Folclore, Jesús Moreno.
Asuar destacó la importancia de los grupos de folclore en cuanto al cuidado de la historia e idiosincrasia de los pueblos como defensores de los mismos. Y definió al folclore como «la salvaguarda de nuestro patrimonio cultural y material», añadiendo que «esta salvaguarda la ha sabido reconocer las Cortes Generales y así ha sido también reconocida a nivel Europeo».
Por su parte Jesús Moreno recordó con entusiasmo que las «seguidillas» serán declaradas Bien de Interés Cultural si el expediente que está en curso sale adelante, hecho del que dijo que tiene esperanza que así sea en 2016.
Sendos presidentes entregaron un obsequio a la asociación madridejense que fue recogido por su presidente, Pablo Gómez, con motivo de este 75 aniversario.
El obsequio que la Federación Castellano Manchega de Folclore le entregó de manera simbólica a Pablo Gómez, consistió en la más alta distinción que puede recibir un grupo de folclore, la insignia de oro, que recibirá la Asociación de Coros y Danzas ‘Villa de Madridejos’ materialmente el próximo 15 de noviembre en Albacete.
El alcalde de Madridejos, José Antonio Contreras Nieves, también hizo entrega al presidente de la asociación de un obsequio que representaba el escudo de Madridejos y que ocupará un lugar en la vitrina de trofeos conseguidos por esta asociación.
El presidente de la Asociación de Coros y Danzas ‘Villa de Madridejos’, Pablo Gómez, intervino diciendo sentirse satisfecho con la herencia de este grupo y destacó algunos de los momentos más emblemáticos de esta asociación, e intervino en la tanda de agradecimientos a los actuales miembros de la asociación, los que han pasado por ella y en la mención que se hizo a título póstumo a los ya fallecidos.
El evento estuvo organizado por dicha asociación en colaboración con el Ayuntamiento de Madridejos y la Diputación de Toledo, y asistieron grupos de folclores de la Comunidad de Castilla La Mancha y Madrid.
De quinceañeras a un grupo cohesionado
La fecha exacta de creación del grupo se desconoce, aunque se ha recabado de un programa de festejos del Ayuntamiento de Madridejos que con motivo de la celebración de «el primer aniversario de la Victoria», el 1 de abril de 1940, la Asociación de Coros y Danzas ‘Villa de Madridejos’, entonces grupo, hacía su primera actuación en este municipio.
El grupo estuvo gestionado por la sección femenina en sus principios, con la peculiaridad de que las chicas no podían tener más de 20 años porque estaba mal visto y todas rondaban los quince años. Fue en 1967 cuando entró el primer grupo de chicos.
La actuación más importante del grupo, en sus inicios, tuvo lugar en 1947 en la muestra de bailes regionales que se ofreció el Toledo a Eva Perón en la visita que hizo a España.
El grupo participó en distintos concursos, que entonces se hacía entre los grupos de folclore, donde se medía la destreza e importancia del los grupos que participaban.
La asociación ha viajado dentro y fuera de España llevando el folclore de La Mancha e incluso fueron invitados por Televisión Española en el programa Gente Joven en la final de grupos de folk donde actuaron con una rondeña.
Con motivo de su 50 aniversario abrieron un chiringuito con motivo de las Ferias y Fiestas en honor al Santísimo Cristo del Prado de Madridejos con cuya recaudación consiguieron costear la sede que actualmente tienen.
El grupo mantiene, tras 75 años de trabajo, una cohesión que ha hecho historia en el municipio de Madridejos tal y como dejaron reflejado sus componentes en esta gala.
por Consuelo Sánchez para la Tribuna de Toledo
Autor: José-María Moreno García. Fotógrafo humanista y documentalista.Cronista Oficial de la Villa de Madridejos.
Una de las mejores formas de conocer la historia de un pueblo es a través de sus imágenes; en ellas se conserva no sólo su realidad tangible, calles, plazas, monumentos, si no también sus costumbres, fiestas, tradiciones, lenguaje, indumentaria, gestos y miradas, que nos dicen sin palabras como se vivía, cuales eran sus esperanzas y temores, qué había en su pasado, qué esperaban del futuro. Uno de los objetivos más ambiciosos es recuperar y catalogar todo el material gráfico existente en nuestra familia desde 1.915, para después ponerlo a disposición de vosotros, que la historia volviera a sus protagonistas, y los que aún siguen con nosotros pudieran disfrutar con ello. VISITA La colección "CIEN AÑOS DE FOTOGRAFÍA FAMILIA MORENO (1915-2015)" en www.josemariamorenogarcia.es y www.madridejos.net
SI ALGUIEN NO DESEA APARECER EN EL ÁLBUM POR FAVOR COMUNÍCALO A josemariamorenogarcia@gmail.com
More info about these bad boys on my blog:
cyclingwmd.blogspot.com/2009/02/introducing-vallie-compon...
Modified body, M42 adapter to create a tread in the body. Helicoil, Lens with modified M42 lens cap to mount the lens.
Being able to use an ADO data source is great, but we did not stop there. We have also added in several custom ADO components that make working with ADO a breeze in dBASE PLUS 8.
Featuring: Accessories, Animations/Poses/Props, Avatar Components, Avatar Enhancements, Builds, Clothing, Cosmetics/Nails, Hairs, Home and Garden, Shapes, Skins, Tattoos
Event Opening Date: November 25, 2024
Event Closing Date: December 22, 2024
Teleport to Uber
Teleport to Uber Cam Sim 1
Teleport to Uber Cam Sim 2
This event is in one location
www.seraphimsl.com/2024/11/25/even-old-man-winter-cant-ge...
Students sorting out the resistors, capacitors, transistors, IC chips, LEDs, speakers and on-off switches for making the biometric device. They were able to stay calm and collected through this very complex and difficult process
This is a shot of my 1988 Manufactured AVO Eight MK.6 Post Office type 1 Multimeter, Internal components view, Very nice quality made instrument
The unit is powered by two batteries, A 15volt BLR 154 for the higher ranges and a D Cell 1.5volt for the lower ranges
73, de Dave 2W0DAA / GW4JKR
Grad Student Temkin Links Dispersant Component with Fat Cell Differentiation
Alexis Temkin is finding an unexpected potential contributor to increased fat cell production: a component in dispersants used for oil spill cleanup and many personal care products.
Lexi’s research melds medicine and marine science to help researchers and doctors better understand the impacts of oil spill compounds on the determination of human cell type. She hopes to influence the way chemical safety is approached, “Our group wants to improve testing for sublethal effects, such as fat cell production rates, when assessing certain chemicals. It’s a different way to think about safety and health.”
Lexi is a marine biomedicine and environmental sciences Ph.D. student at the Medical University of South Carolina and a GoMRI Scholar with the project Using Embryonic Stem Cell Fate to Determine Potential Adverse Effects of Petroleum/Dispersant Exposure.
Caption: Lexi poses with a baby alligator during an alligator release trip.
Photo Credit: Lexi Tempkin
Read More: gulfresearchinitiative.org/grad-student-temkin-links-disp...
The Smithsonian Ocean Portal also recently featured Lexi in their Women in Science series. Read her interview here: gulfresearchinitiative.org/smithsonians-five-questions-wi...
In a couple of weeks I've signed up on a course where I will hopefully learn how to use an overlocker. This will be at the same place where I went earlier in the year to learn how to thread and use a basic sewing machine.
It's a week or so before my daughter's birthday and the item of clothing we're making is a child's dress so I've let my daughter pick her fabric, thread, and buttons this weekend in the hope that I don't make an absolute arse of the dress and it will be something she can treasure.
Fingers crossed, no pressure.
The electronic component suppliers in India have a huge task to do. The suppliers need to ensure that there is availability of products in the hands of the end users. The task of supplying goods is not an easy task in India and these suppliers do it with an ease.
Cream and Wedgewood Blue Sunflowers; Coral/Terra Cotta Paisley; Blue Gray Floral; Cream and Blue Gray
You might remember this body cap from a previous experiment in which I added a step up ring in order to hold filters. I've removed the old pinhole and bored a larger hole using a dremel tool.
Similarly, I recycled this pinhole and film canister cap from my Asahi-Pentax mod.
Just recently, a friend brought me this box of cover glasses. These are almost next to impossible to source in Hanoi.
Shutter power module.
The external VS14s shutter need an 65V @4 ms pulse to close into 3.5ms. This powermodule make the 65V from the 7.2V battery. During camera focus adjusting, I need near 20V to close the shutter and 5V to hold the shutter open. This circuit has a fet to limit the 65V to 20V in adjust mode.
A lot of security functions are need, to drive the DC/DC convertor an AVR controller ATtiny26 is used.
This super shielded 12 Ft. component coaxial audio/video cable works wonderfully for high definition digital TV connections. It not only carries the High definition video signal, but also the stereo audio feed, eliminating the need for an additional 2-lead audio cable, and keeping your component HD installation as neat as possible.
I've been doing some bread board prototyping for a microcontroller
based battery desulfator unit. At this point I am heating up a
inductor or the mosfet both of which are BAD. I think my pulse is
inverted so I'm working on fixing that today.